USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1992-019-FA

Other ID: LEGS 2-8-92; 92-8

Status: Completed

Organization(s): USGS, Woods Hole Coastal and Marine Science Center

Funding Program(s):

Location: offshore Lorain and Vermilion, Ohio, Lake Erie, Great Lakes, United States, North America;

Principal Investigator(s): Ronald C. Circe

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Sonar: Single Beam, Environmental Data: Turbidity, Sampling: Biology, Sampling: Chemistry, Sampling: Geology, Location-Elevation: Navigation

Scientific Purpose/Goals: To test feasibility of operating sidescan sonar from a small (22 ft) vessel in the very nearshore zone of Lake Erie and to ground truth via diving unique bottom features observed on previous sidescan sonar records.

Vehicle(s):

Start Date: 1992-08-14

Start Port/Location: Sandusky, OH

End Date: 1992-08-23

End Port/Location: Sandusky, OH

Equipment Used: Echosounder, Acoustic resuspension measurement system, Sidescan sonar, SCUBA, Loran-C

Information to be Derived:

Summary of Activity and Data Gathered: Approximately 25 nautical line miles (nlm) were run in both the nearshore zone and as site-specific lines over previously recorded features. A total of 14 dives were made (7 each by 2 divers) on 3 different sites. Bottom samples, descriptions and 8 mm video were collected on each of the 3 sites. On 1 site, a 1.78 m core was taken. This core was later extruded, described and subsampled.

Staff: Dann Blackwood, Ronald C. Circe

Affiliate Staff:
Ohio Geological Survey: N. Fuller
D. Liebenthal
D. Guy
S. Mackey
D. Foye
M. Horwat

Notes:
Project = Geological Framework of Lake Erie, Geological Framework of Lake Erie

Location Map:

Platform(s):

photo of GS-1
GS-1
photo of Pike
Pike

Publications

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Echosounder --- Single Beam
Acoustic resuspension measurement system --- Turbidity
Sidescan sonar --- Sidescan
1992-019-FA-SO-001 ( Collection of paper record displays of sidescan sonar data for lines )
SCUBA --- Biology
Chemistry
Geology
Loran-C --- Navigation